Re: Red hat linux server lost connectivity to the storage. Please suggest.

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One of our redhat server that was earlier zoned to EMC storage is not able
to see any LUNs/Disks all of a sudden.

We are not seeing any entries in /sys/class/fc_host.

# ls -ld /sys/class/fc_host
ls: /sys/class/fc_host: No such file or directory


# more /etc/redhat-release
Red Hat Enterprise Linux Server release 5.2 (Tikanga)

# uname -r
2.6.18-128.4.1.el5

RHEL 5.2 is quite dated, you might consider moving to RHEL 5.7. RHEL 5.8 was just released.

# lspci | grep -i fibre
04:00.0 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel
Host Adapter (rev 02)
04:00.1 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel
Host Adapter (rev 02)
05:00.0 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel
Host Adapter (rev 02)
05:00.1 Fibre Channel: Emulex Corporation Zephyr-X LightPulse Fibre Channel
Host Adapter (rev 02)

Please suggest or point us in the right direction.

Are you loading lpfc?

What is the output of "lsmod | grep lpfc" ??

Barry

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